Atoms
Protons, Neutrons, Electrons
Chemical compounds are formed by two or more _________.
elements.
The amount of energy needed to raise a substance’s temperature by making its molecules move faster is ____.
heat capacity
Proteins create...
muscle, hair, meat
Carbohydrates create
sugars, breads, grains
Where are the protons and neutrons located?
In the nucleus (center of atom)
How are covalent and ionic bonds different?
Covalent shares electrons, ionic transfers electrons.
How are adhesion and cohesion different?
Adhesion- attraction of molecules from different substances
Cohesion- attraction of molecules from the same substances
What is a macromolecule?
Lipids create
fats, oils, phospholipids (cell membranes)
An atom becomes an ________ when the number of neutrons are different.
isotope
What kind of chemical bond is a water molecule, or H2O? Covalent or Ionic?
covalent because they share electrons
Solutions are when water's polarity gives it the ability to ______ molecules.
dissolve
State the four macromolecules.
lipids, carbs, proteins, nucleic acids
Nucleic acid creates...
DNA
How is water, H2O, different from it's original elements?
Water is a liquid while hydrogen and oxygen are gasses.
When lactic acid increases, blood pH ________.
stays the same
Like a puzzle, a polymer is linked together with single __________.
monomer
Proteins are made out of....
Carbon (C) bonds with ________ to create living things: (state up to 5)